The Arm Cortex-M20+ MCU is a microcontroller unit based on the Arm Cortex-M20+ processor, designed by Arm Holdings, a British semiconductor and software design company. Arm Holdings is a global leader in microprocessor intellectual property, serving various industries including automotive, industrial automation, consumer electronics, and IoT. The Cortex-M20+ MCU is part of Arm's Cortex-M series, known for its energy efficiency, real-time performance, and cost-effectiveness, making it ideal for embedded applications. These MCUs are widely used in devices requiring low power consumption and high reliability, such as sensors, wearables, and smart home systems. Companies like STMicroelectronics, NXP Semiconductors, and Microchip Technology often integrate Arm Cortex-M cores into their products.